NAME

       Log::Log4perl::Appender::ScreenColoredLevels - Colorize messages according to level

SYNOPSIS

           use Log::Log4perl qw(:easy);

           Log::Log4perl->init(\ <<'EOT');
             log4perl.category = DEBUG, Screen
             log4perl.appender.Screen = \
                 Log::Log4perl::Appender::ScreenColoredLevels
             log4perl.appender.Screen.layout = \
                 Log::Log4perl::Layout::PatternLayout
             log4perl.appender.Screen.layout.ConversionPattern = \
                 %d %F{1} %L> %m %n
           EOT

             # Appears black
           DEBUG "Debug Message";

             # Appears green
           INFO  "Info Message";

             # Appears blue
           WARN  "Warn Message";

             # Appears magenta
           ERROR "Error Message";

             # Appears red
           FATAL "Fatal Message";

DESCRIPTION

       This appender acts like Log::Log4perl::Appender::Screen, except that it colorizes its
       output, based on the priority of the message sent.

       You can configure the colors and attributes used for the different levels, by specifying
       them in your configuration:

           log4perl.appender.Screen.color.TRACE=cyan
           log4perl.appender.Screen.color.DEBUG=bold blue

       You can also specify nothing, to indicate that level should not have coloring applied,
       which means the text will be whatever the default color for your terminal is.  This is the
       default for debug messages.

           log4perl.appender.Screen.color.DEBUG=

       You can use any attribute supported by Term::ANSIColor as a configuration option.

           log4perl.appender.Screen.color.FATAL=\
               bold underline blink red on_white

       The commonly used colors and attributes are:

       attributes
           BOLD, DARK, UNDERLINE, UNDERSCORE, BLINK

       colors
           BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE

       background colors
           ON_BLACK, ON_RED, ON_GREEN, ON_YELLOW, ON_BLUE, ON_MAGENTA, ON_CYAN, ON_WHITE

       See Term::ANSIColor for a complete list, and information on which are supported by various
       common terminal emulators.

       The default values for these options are:

       Trace
           Yellow

       Debug
           None (whatever the terminal default is)

       Info
           Green

       Warn
           Blue

       Error
           Magenta

       Fatal
           Red

       The constructor "new()" takes an optional parameter "stderr", if set to a true value, the
       appender will log all levels to STDERR.  If "stderr" is set to a false value, it will log
       all levels to STDOUT. Otherwise, "stderr" may be set to a hash, with a key for each
       "log4p_level" and a truthy value to dynamically use stderr.  The default setting for
       "stderr" is 1, so all messages will be logged to STDERR by default.

           # All messages/levels to STDERR
           my $app = Log::Log4perl::Appender::Screen->new(
               stderr  => 1,
           );

           # Only ERROR and FATAL to STDERR (case-sensitive)
           my $app = Log::Log4perl::Appender::Screen->new(
               stderr  => { ERROR => 1, FATAL => 1},
           );

       The constructor can also take an optional parameter "color", whose value is a  hashref of
       color configuration options, any levels that are not included in the hashref will be set
       to their default values.

   Using ScreenColoredLevels on Windows
       Note that if you're using this appender on Windows, you need to fetch Win32::Console::ANSI
       from CPAN and add

           use Win32::Console::ANSI;

       to your script.

LICENSE

       Copyright 2002-2013 by Mike Schilli <m@perlmeister.com> and Kevin Goess <cpan@goess.org>.

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

AUTHOR

       Please contribute patches to the project on Github:

           http://github.com/mschilli/log4perl

       Send bug reports or requests for enhancements to the authors via our

       MAILING LIST (questions, bug reports, suggestions/patches):
       log4perl-devel@lists.sourceforge.net

       Authors (please contact them via the list above, not directly): Mike Schilli
       <m@perlmeister.com>, Kevin Goess <cpan@goess.org>

       Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens Berthold, Jeremy
       Bopp, Hutton Davidson, Chris R. Donnelly, Matisse Enzer, Hugh Esco, Anthony Foiani, James
       FitzGibbon, Carl Franks, Dennis Gregorovic, Andy Grundman, Paul Harrington, Alexander
       Hartmaier  David Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter, Brett
       Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, Lars Thegler, David Viner, Mac
       Yang.